how to | ex­tend your macbook’s run­ning time

Mac Format - - IMPROVE -

Choose mo­bile set­tings

The Energy Saver pane in Sys­tem Pref­er­ences should be your first port of call. Click Bat­tery to change set­tings for mo­bile use. You can ad­just how quickly the screen and hard drive switch off when the Mac is idle, and whether Power Nap is ac­tive – see http://ap­ple.co/1HjNZuH for de­tails.

Limit stream­ing and video

Stream­ing a lot of online video from sites like iPlayer and YouTube can put a dent in bat­tery life be­cause your Wi-Fi con­nec­tion will be very ac­tive. Re­mem­ber, some video ser­vices, such as iPlayer (bbc.co.uk/iplayer/in­stall), per­mit you to down­load con­tent to watch off­line.

Get sys­tem up­dates

Sys­tem up­dates some­times in­clude tweaks to power man­age­ment. In the App Store pane in Sys­tem Pref­er­ences, turn on au­to­matic check­ing for up­dates, and the op­tions to down­load and in­stall them. Note that Power Nap only al­lows up­dates to down­load while on mains power.

Mon­i­tor the tem­per­a­ture

A hot en­vi­ron­ment isn’t healthy for your Mac, and a busy hard drive (rather than flash stor­age) will fur­ther con­trib­ute to heat in­side your Mac. A hot pro­ces­sor is bad news, and will cause your Mac’s fans to spin up. Mon­i­tor heat lev­els us­ing Tem­per­a­ture Gauge (£3.99, Mac App Store).

Keep an eye on the time

An es­ti­mate of how long your Mac’s bat­tery will last un­der cur­rent ac­tiv­ity is shown when you click the bat­tery icon in the menu bar. You can turn on a per­cent­age in­di­ca­tor too. The menu iden­ti­fies any open apps that are con­tribut­ing to power drain, in case you want to close them.

Check for energy hogs

Co­conutBat­tery (free, co­conut-flavour.com) pro­vides a health check for your bat­tery by show­ing its cur­rent max­i­mum ca­pac­ity and its orig­i­nal ca­pac­ity when new. Fi­nally, in Mis­sion Con­trol’s pref­er­ences, set a Hot Cor­ner so that you can put the dis­play to sleep in an in­stant.

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